AccordingtoanewstudybyaBritishuniversity,learning

問題詳情：

 According to a new study by a British university, learning __________ second language can lead to __________ increase in your brain power.

       A. a; the                   B. a; an                     C. 不填; the                 D. the; an

【回答】

B

知識點：冠詞

題型：選擇題